CN100439792C - Luminaire providing an output beam with a controllable photometric distribution - Google Patents

Luminaire providing an output beam with a controllable photometric distribution Download PDF

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Publication number
CN100439792C
CN100439792C CNB2003801041808A CN200380104180A CN100439792C CN 100439792 C CN100439792 C CN 100439792C CN B2003801041808 A CNB2003801041808 A CN B2003801041808A CN 200380104180 A CN200380104180 A CN 200380104180A CN 100439792 C CN100439792 C CN 100439792C
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CN
China
Prior art keywords
optical
light source
light
luminaire
diode
Prior art date
Application number
CNB2003801041808A
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Chinese (zh)
Other versions
CN1717958A (en
Inventor
L·蒙塔格内
Original Assignee
皇家飞利浦电子股份有限公司
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Priority to FR0214901 priority Critical
Priority to FR0214901 priority
Application filed by 皇家飞利浦电子股份有限公司 filed Critical 皇家飞利浦电子股份有限公司
Publication of CN1717958A publication Critical patent/CN1717958A/en
Application granted granted Critical
Publication of CN100439792C publication Critical patent/CN100439792C/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00Lighting devices or systems producing a varying lighting effect
    • F21S10/02Lighting devices or systems producing a varying lighting effect changing colors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • F21V5/043Refractors for light sources of lens shape the lens having cylindrical faces, e.g. rod lenses, toric lenses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

The invention relates to a luminaire comprising a plurality of light sources fixedly locatee in a plurality of positions and comprising at least an electroluminescent diode. Said sources are focused by the same optical system fixed relative to the plurality of sources. Said luminaire comprises electronic means for dimming sources in their emission intensity independently of one another and as a function of their respective positions relative to said optical system. The invention provides an output beam having a dimmable photometric distribution in time and in space at the output of said optical system.

Description

Provide and have the luminaire that to control photometric distribution
Technical field
The present invention relates to luminaire, this luminaire comprises a plurality of light sources that are arranged in a plurality of positions regularly and comprises at least one electroluminescent diode.The invention still further relates to the luminaire that works in illumination and brightness.
Background technology
By patent application WO 99/30537, this luminaire is known.In this document, be focused into output bundle by optical system by the light of a plurality of light emitted that comprise at least one electroluminescent diode.Described optical system is movably, therefore makes it may adjust the photometric distribution of output bundle.Also proposed to adjust the device of radiative color, formed this device by independence control to the diode of different colours.
The present invention is based on following consideration.
In the prior art, the physics by mechanical part moves the adjustment of generation to the photometric distribution of output bundle.Utilize to move and mean that use machinery and high-energy rig start described optical system.In the file of quoting, the single direction rise lay the grain degree distribution that the axle of luminaire is adjoined on the edge is possible, unless this luminaire is shifted fully.This has limited may using of this luminaire to a great extent.In fact the instantaneous orientation of light beam can't be provided during in addition, machinery moves.This has reduced the application of this luminaire again.The color that is positioned at the light beam at luminaire axis center is controlled in respectively organizes diode, promptly controls three light sources of different colors independently.
Summary of the invention
Target of the present invention is, under the situation of not using the mechanical device that is used for moving-member, obtains to have the light beam of high degree of adaptability and the high-speed photometric distribution controlled, and keeps simultaneously and uses the advantage that electroluminescent diode provided.
For this purpose, in the introductory song paragraph, describe according to luminaire of the present invention, it is characterized in that, focus on described light source by an identical optical system, this optical system focuses on for each light source provides the light beam of different photometric distribution, this optical system is fixed with respect to described a plurality of light source positions, described luminaire comprises electronic installation simultaneously, the intensity that this electronic installation is designed to control this light source and can controls described light source independently of each other, and the intensity of described light source is as the function of each light source with respect to the position separately of described optical system, thus the output of described optical system obtain to have on the time and the space on the output bundle of controllable photometric distribution.The position of light source is such: control device can only be adjusted the photometric distribution of light beam by controlling each diode independently.
In advantageous embodiments, described light source is provided with the device that is used to change its color, and the device that is used to start light source comprises the device that is used to control described light source colour.
In the first embodiment of the present invention, described optical system comprises that at least one is configured as the surface of spherical calotte.
In the second embodiment of the present invention, described optical system comprises that at least one is configured as the surface on the part face of cylinder.
In favourable application of the present invention, the photometric distribution of output bundle has the maximum of at least two different colours.
Description of drawings
To understand the present invention better by the following description to several embodiment, these embodiment provide in the mode of example and with reference to accompanying drawing, wherein:
Fig. 1 is the schematic diagram according to luminaire of the present invention,
Fig. 2 shows the diode that can advantageously realize in luminaire according to the present invention,
Fig. 3 a is the perspective schematic view of luminaire in the first embodiment of the invention,
Fig. 3 b and 3c have set forth the generation that has the output bundle that can change photometric distribution in the first embodiment of the invention,
Fig. 4 a is the front schematic view of luminaire in the second embodiment of the invention,
Fig. 4 b has set forth the photometric distribution according to output bundle in the cross section of the luminaire of second embodiment of the invention,
Fig. 5 has set forth first practical application according to the luminaire of second embodiment of the invention, and
Fig. 6 has set forth second practical application according to the luminaire of second embodiment of the invention.
The specific embodiment
Following illustration purpose is to make those skilled in the art can understand and use the present invention.Provided this explanation at the text of patent application and in requiring.To those skilled in the art, the various alternative of preferred embodiment is that significantly the general principle of the present invention that is described in detail here is applicable to alternative.
Following statement relates to reference symbol.In all figure, represent similar elements with same letter.A plurality of similar elements can appear in an identical figure.In this case, reference letter adds suffix to distinguish these similar elements.For convenience, can omit this numeral or suffix.This relates to specification and claims.
Fig. 1 is the schematic diagram according to luminaire of the present invention.This luminaire comprises a plurality of light source SCE that are fixedly located in a plurality of positions and comprise at least one electroluminescent diode.According to the present invention, focus on described light source by an identical optical system OPT, this optical system is positioned at the fixed position with respect to described a plurality of light source SCE.Described luminaire comprises the electronic-controlled installation CTR of light source, this device can be controlled independently of each other as the emissive porwer of each light source with respect to the described light source of the position function separately of described optical system OPT, thus the output of described optical system OPT obtain to have on the time and the space on the output bundle BEA of controllable photometric distribution.The control of each led lighting intensity, feasible intensity and the direction that can control output bundle.
Fig. 2 shows the light source SCE according to an advantageous embodiment.This light source SCE comprises the device that is used to change color.This advantageous embodiment is not restrictive: can adopt monochromatic a plurality of diodes or many groups diode of different colours in luminaire according to the present invention.Therefore, this light source SCE is for example, to be included in the electroluminescent diode of three chips in the shell.The specific primary colors of each described chip emission: red, green and blue.In this example, Connection Element R, G and B are connected respectively to the negative electrode in the chip, and described negative electrode applies certain electrical potential, to cause a kind of color in relevant chip emission redness, green, the blueness.Connection Element P is connected to the shared anode of all chips.Each chip in independent these chips of control is so that the light of diode emission presents any possible color by each color combinations.Electronic-controlled installation CTR comprises the device that is used to control light source colour subsequently.These electronic installations are controlled the luminous intensity of each chip R, G, B.Therefore each light source can present and comprise that any of white may color.The collimation of diode connects the feasible change that may realize color and colour temperature of Electronic Control almost instantaneously.For example, the device that is called Xitanium 25WDimmable LED Power Driver by Philips company forms Electronic Control.This electronic control device can be according to the intensity of three autonomous channels of desired scene control electroluminescent diode.The control of diode light-source can utilize number and one group of identical this device of expection passage.Comprise that at luminaire (possibility of adjusting the output bundle color also is provided) in the situation of many groups diode of monochromatic a plurality of diodes or different colours also use the electronic control device of same type, reason is to programme described device to respond the requirement of independent control diode.Can alternatively use to provide any equivalent devices that a plurality of electroluminescent cells are independently controlled.According to the independence to the diode control action of the present invention, make and to determine beam direction by the photometric distribution of control light beam.This orientation also is accurate instantaneous, and specific orientation is corresponding to starting at least one specific diode.The part of each light source contribution light beam, but this part of light beam is actually Instantaneous Control.Adjust light beam in fact instantaneous mode, and the not noise of producing component and wearing and tearing.Therefore output bundle can be adjusted into the function of the luminous level that diode produces and the function of the color that each light source presents partly.This light beam therefore can be that concentrate, diffusion, asymmetrical, and therefore may be controlled to different shape.Therefore the present invention provides in fact instantaneous and the possibility shaped beam that adaptability is very high.The independence of diode control and the point-like characteristic of this light source make and may obtain according to many difformities of the present invention, and the machinery of production part does not move.According to the present invention, this diversity depends on the number of bootable diode.Number of diodes is high more, and diversity is big more.In view of electroluminescent diode is the light source of powerful compactness, the increase of its number can not cause enlarging markedly of spatial volume.Because the size of diode, output bundle accurately can formalize.The present invention also can be used for projection gobbos.Gobbos is made as the part of optical system itself, perhaps place on the position that optical system is fixed relatively in the luminaire, but gobbos always is positioned at the beam path that is produced by at least one given diode.Therefore can project into one or more distinct image the function of direction, each direction is corresponding at least one diode of emission luminous energy.In addition, the feasible very simple SERVO CONTROL that may be embodied as the external event function of the all-electronin characteristic of light source control device, especially, by this incident of sensor measurement.
The present invention is not have machinery to move, be not used in shutter or the aperture of sheltering the light beam specific part, do not have filter holder and need not to rotate luminaire with respect to the advantage of known projection system, does not therefore have inertia.Because need not to move any parts, the size of luminaire is also significantly dwindled.
Fig. 3 a, b, c have schematically shown the luminaire of first embodiment of the invention.According to this first embodiment, optical system is made by transparent material.In configuration shown in Figure 3, described optical system comprises surface, face of cylinder CYL and the plane surface PLA that is shaped as spherical calotte SPH.This optical system can be such as one of lens independent main body, or filled the hollow component that refractive index is higher than the transparent material of air.This optical system make can focused light source SCE emission light.This focusing is different to light source with respect to the dependence of the position of optical system.
Illustrated among Fig. 3 b from the example of the light beam of Different Light acquisition.Clear in order to illustrate, only show three diodes, but be typically about ten to 100 magnitude according to the number of the diode that uses in the luminaire of the present invention.Shown in the independent light beam that produces respectively of three diodes represent with dissimilar dotted lines.Be apparent that when single diode was launched, the output bundle of acquisition was advantageously concentrated.The essence of optical system is given the characteristic that light beam is concentrated with the position of the relative focal plane of relevant source.Therefore can change the set condition of the present invention with the light beam person's character of deferring to the application that depends on imagination and requirement thereof.Change causes the change of the optical system focusing performance and the position of the relative optical system of diode to adapt to specific application, still keeps principle of the present invention simultaneously.According to the present invention, therefore single diode can produce the focused beam along specific direction.The structural limitations of optical system possible direction.Yet the optical system that the material by suitable refractive index (being about 1.5) shown in Fig. 3 a, b and the c is made can be generally directed on most of space in 1/4th spaces.Suitable biconvex optical system (for example sphere) can provide the beam direction of in fact complete half space.The peripheral diode that further adds in optical system can advantageously adopt the antireflection element with the possible orientation range of further increase.Depend on the selection control of light emitting diode, the intensity of light beam and color can change.If several led lightings, result's beam spread arrives such degree: light beam is overlapping in specific geographic area at least.By controlling luminous intensity and the color that light beam forms each related diode, can control the intensity and the color of the light beam of this diffusion.The present invention also makes might obtain to have a plurality of peaked photometric distribution.In fact, the light beam of two different diodes generations may be spaced apart fully.This presupposes the light beam that obtains from a diode is directed fully.When diode for example near the focus of optical system or when being positioned at the position of the specified point that light beam assembles, actual conditions are such.Can recognize the importance of the latter's convergence characteristics when for example, the object in the museum throws light on especially.In this was used, it was very favorable using diode and becoming possible miniaturization.The single optics output that the present invention can also be provided for closely throwing light on.Light beam also can be dynamic, promptly responds interactive command.
Fig. 3 c shows the photometric distribution that is obtained by the luminous intensity of two diodes emission by combination successively.Be apparent that the SUM of light beam as a result that obtains more spreads than the light beam that obtains from single diode like this.
Therefore this first embodiment can be used for light beam is different directions in the short time period any application.So its application is primarily aimed at illumination and uses.
Fig. 4 a and 4b show second embodiment.The optical system here has two plane surface PLA and a face of cylinder CYL.Section AA among Fig. 4 b has schematically shown same luminaire.Light source SCE is positioned at the round CIR concentric with face of cylinder CYL.Cylinder CYL focuses on the light of each diode emission.This focusing makes can obtain such light beam: when diode was placed the closer to focal plane, directionality was good more.The refractive index of the material of making cylinder is depended in the position of focus.Therefore the selection of the refractive index of use material is depended on the application of imagination again.
Fig. 5 and 6 shows the application of a back embodiment.Cylinder shown in Fig. 4 a is placed vertically on street for example.Use it for the position that the pedestrian is directed to the function of color that can perception by the pedestrian according to Fig. 5 subsequently.So the applicable cases of these application depends on the brightness characteristics that the present invention has.Therefore M1 sees the light G of the diode emission that is positioned at Fig. 5 right side.Launch this light (luminous) and be for example green.In this case, M1 knows oneself just along correct direction walking, and will continue walking up to in-position M1 '.When M2 sees to luminaire, will see the light R of the diode emission that is positioned at the figure left side.This light is for for example red.Therefore M2 knows that the direction that he saw is not correct direction.Be positioned over farther and determine that shown in a back figure another cylinder of direction will be the direction of its indicating correct outside this figure from the right side.From top view to the emission of the 3rd group of diode for example represent the blue light B of neutral direction.Also can on the face of cylinder of each diode front, place gobbos,, for example, be used for the arrow from left to right in blue light beam zone to help understanding to guiding.For example under the situation of emergency evacuation, can order the change of leading in fact instantaneous and simply.
Another application shown in Fig. 6 can stop the pedestrian to enter hazardous area or protection zone.This application is interesting, for example is used for the museum or makes personnel away from special modality or danger: platform etc.
In Fig. 6, M1 and M2 see the light by the diode emission that is labeled as G, and be promptly luminous, here this diode transmitting green light.So M2 selects to rest on green this position of being approved, and M1 continues to be forwarded to position M1 '.In this position, he sees the light of diode R emission now, the red brightness of this diode emission.This tells M1 should further not move ahead.
Electronic installation by control diode color can change this red light apace, for example works as train and has arrived and required passenger loading.The tele command that the present invention proposes makes can be simply and automatically control according to luminaire of the present invention.Except suitable enforcement the present invention, Secure Application also requires to provide servicing unit and relates in addition in accordance with the improvement of regulation for safety and development.
Shown in each figure only point out specific embodiments of the present invention.Therefore, the present invention should not be understood that to be limited to described embodiment, but has the wider scope according to aforementioned principles and feature.For example, can be by complete sphere or alternatively by column part, perhaps by provide any other shape that focuses on different photometric distribution to make this optical system for each light source.

Claims (5)

1. luminaire, comprise a plurality of light sources that are arranged in a plurality of positions regularly, described a plurality of light source comprises at least one electroluminescent diode, it is characterized in that: focus on described light source by an identical optical system, this optical system focuses on for each light source provides the light beam of different photometric distribution, this optical system is in a fixed position with respect to described a plurality of light sources, described luminaire comprises electronic installation simultaneously, the intensity that this electronic installation is designed to control described light source and controls described light source independently of each other, and the intensity of described light source is as the function of each light source with respect to the position separately of described optical system, thus the output of described optical system obtain to have on the time and the space on the output bundle of controllable photometric distribution.
2. the luminaire described in the claim 1 is characterized in that described light source is provided with the device that is used to change its color, and the device that is used to start light source comprises the device that is used to control described light source colour.
3. described luminaire wherein in the claim 1 and 2 is characterized in that described optical system comprises that at least one is configured as the surface of spherical calotte.
4. described luminaire wherein in the claim 1 and 2 is characterized in that described optical system comprises that at least one is configured as the surface on the part face of cylinder.
5. claim 1 or 2 described luminaires is characterized in that the photometric distribution of output bundle has the maximum of at least two different colours.
CNB2003801041808A 2002-11-27 2003-11-11 Luminaire providing an output beam with a controllable photometric distribution CN100439792C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0214901 2002-11-27
FR0214901 2002-11-27

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CN1717958A CN1717958A (en) 2006-01-04
CN100439792C true CN100439792C (en) 2008-12-03

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US (1) US7314289B2 (en)
EP (1) EP1568255B1 (en)
JP (1) JP2006508504A (en)
CN (1) CN100439792C (en)
AT (1) AT460069T (en)
AU (1) AU2003274630A1 (en)
DE (1) DE60331582D1 (en)
ES (1) ES2341332T3 (en)
WO (1) WO2004049765A1 (en)

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CN1717958A (en) 2006-01-04
EP1568255B1 (en) 2010-03-03
DE60331582D1 (en) 2010-04-15
EP1568255A1 (en) 2005-08-31
US20060146528A1 (en) 2006-07-06
JP2006508504A (en) 2006-03-09
WO2004049765A1 (en) 2004-06-10
AU2003274630A1 (en) 2004-06-18
US7314289B2 (en) 2008-01-01
ES2341332T3 (en) 2010-06-18
AT460069T (en) 2010-03-15

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